Data.

This dataset was collected by Citizen Scientists at an official 'Survey Area' as part of the Litter Intelligence long-term litter monitoring programme. The data are freely and openly accessible to anyone. Download the raw data, share this survey, and learn more about the data collection methodology through the links at the bottom of the page.

Litter Collection Survey

Porirua Harbour - Paremata Bridge

30 August 2020

Friends of Mana Island

Rosemary McCarthy

Overview

D

10

14.2

23.2

30m x 9m

Mixed Substrate

Items per 1,000m2

10819

Products

2921

9163

Type Count Weight (g)
Plastic 2547 3664
Resin pellets A N/A
Gardening & farming related 5 50
Safety & construction related 12 97
Strapping bands & tape 39 26
Lollipop sticks 60 21
Food containers 28 126
Fishing gear 2 8
Mesh bags 1 1
Cigarettes, butts & filters 14 3
Bottles, drums, jerrycans & buckets > 2 L 1 14
Plastic vehicle parts 2 8
Shotgun wadding & shells 9 11
Parking tickets & receipts 6 5
Fishing line 30 23
Unidentifiable hard plastic fragments 679 492
Syringes 2 N/A
Cigarette lighters 1 22
Straws 94 48
Rope 79 304
Fishing nets 1 79
Food wrappers 356 126
Bottle neck rings 30 15
Plastic utensils 4 7
Bottle caps & lids 139 366
Clothes pegs 10 139
Medical waste 2 2
Pens 12 31
Bottles <= 2 L 6 232
Unidentifiable soft plastic fragments 791 335
Toys, sport, & recreation 35 765
Plastic bags 41 227
Other Plastic 8 61
Bottle seals & tabs 48 20
Glass & Ceramic 183 735
Glass or ceramic fragments 63 199
Construction material 120 536
Other 74 34
Cotton buds 66 13
Sanitary items 6 N/A
Personal care items 2 21
Wood 49 4333
Other Wood 1 12
Processed timber & pallet crates 48 4321
Foamed Plastic 33 19
Polystyrene insulation or packaging 22 13
Unidentifiable foamed plastic fragments 10 5
Ear plugs 1 1
Rubber 13 172
Balloons, tennis balls, footballs, dog toys etc 13 172
Paper & Cardboard 12 156
Cardboard boxes 1 153
Unidentifiable paper and cardboard fragments 11 3
Metal 10 50
Metal Bottle caps, lids & pull tabs 3 10
Aluminium drink cans 1 28
Foil wrappers 6 12
Materials
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